Route · STS → PDX · 2020–2025 BTS data
Santa Rosa to Portland
The STS–PDX corridor (Santa Rosa, CA → Portland, OR) runs ahead of the national average, served by 3 carriers across roughly 489 miles.
Data updated 2026-06-13
- 86.1%
- On-time
- +7.1 pts
- vs US avg
- 77 min
- Delay when late
- 1,205
- Flights
Cancelled
0.8%
Best Month
Sep 2025 95%
Worst Month
May 2025 82%
Distance
489 mi
Carriers
3
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 44 | 11 | 1 | 1 | OO |
| Nov 2025 | 59 | 6 | 1 | 0 | OO |
| Oct 2025 | 36 | 1 | 0 | 0 | OO |
| Sep 2025 | 60 | 3 | 0 | 0 | OO |
| Aug 2025 | 43 | 6 | 0 | 0 | OO |
| Jul 2025 | 31 | 1 | 0 | 0 | OO |
| Jun 2025 | 41 | 7 | 0 | 0 | OO |
| May 2025 | 62 | 11 | 0 | 0 | OO |
| Apr 2025 | 38 | 7 | 0 | 0 | OO |
| Mar 2025 | 30 | 7 | 0 | 0 | OO |
| Apr 2024 | 34 | 6 | 0 | 0 | OO |
| Mar 2024 | 42 | 11 | 0 | 0 | OO |
| Jan 2024 | 31 | 2 | 3 | 0 | OO |
| May 2023 | 31 | 4 | 0 | 0 | OO |
| Oct 2022 | 31 | 3 | 0 | 0 | OO,QX |
| Sep 2022 | 30 | 9 | 0 | 0 | OO |
| Aug 2022 | 31 | 3 | 0 | 0 | OO |
| Jul 2022 | 31 | 1 | 0 | 0 | OO |
| Jun 2022 | 30 | 7 | 0 | 0 | OO,QX |
| May 2022 | 31 | 2 | 0 | 0 | QX |
| Apr 2022 | 30 | 1 | 0 | 0 | OO,QX |
| Mar 2022 | 31 | 6 | 0 | 0 | OO,QX |
| Jan 2022 | 32 | 4 | 2 | 0 | OO,QX |
| Dec 2021 | 33 | 17 | 0 | 0 | OO,QX |
Cancellation Rate
0.8%
7 of 892 flights
Diversion Rate
0.1%
1 of 892 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
STS - Santa Rosa
Full on-time, delay-cause, and seasonal performance for Santa Rosa, CA.
Origin airport →PDX - Portland
Full on-time, delay-cause, and seasonal performance for Portland, OR.
Destination airport →Compare the two airports
See STS and PDX side by side on delays, cancellations, and reliability.
Open comparison tool →Similar routes
Other BTS-tracked routes with comparable performance or trip length to STS–PDX.
Routes with a similar on-time rate
What the Data Says About STS to PDX
Santa Rosa to Portland (STS to PDX) is one of the more dependable pairings in the BTS On-Time Performance dataset: a 86.1% on-time rate across 1,205 flights, with delays that do happen averaging 77.1 minutes. The corridor runs roughly 489 miles and is served by 3 carriers. Over the most recent 24 months, 7 of 892 flights were cancelled (0.8%) and 1 diverted (0.1%).
Monthly performance varies moderately here: Sep 2025 was the strongest month at 95% on-time versus May 2025 at 82%, a 13-point difference.
Frequently Asked Questions
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Data source
Data Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data. Statistics reflect cumulative performance across all available reporting periods.
Read our methodology - how this data is sourced, computed, and verified.
Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. This page aggregates this specific route's on-time performance and monthly trend, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.